The medulla was discontinuous, granular, very bulbous, and very uneven. It was not a constant, smooth straight line such as one might find over here in this pubic hair on 672. There was nothing unusual noted about the root area of these hairs. Mr. EISENBERG. And again you are describing the characteristics of both hairs, and they were identical in all these characteristics? Mr. STOMBAUGH. That is correct. Mr. EISENBERG. Were there any characteristics in which they were not identical? Mr. STOMBAUGH. No; not on the limb hair, as I found it matched. I did find limb hairs and pubic hairs and head hairs in this blanket which were dissimilar to Oswald's and definitely did not come from him but the hairs I have talked about here matched in all microscopical characteristics. Mr. EISENBERG. The other hairs, Mr. Stombaugh, could you make a determination as to race? Mr. STOMBAUGH. Yes; they were all Caucasian. Mr. EISENBERG. Could you make a determination as to sex or age? Mr. STOMBAUGH. No; it is not possible to determine sex or age from an examination of a hair. Mr. EISENBERG. Could you make a determination as to the number of individuals who had contributed these hairs? Mr. STOMBAUGH. No; I couldn't. You would have to have a hair sample from any suspected person, and hairs vary tremendously. Even on the same individual head hairs from the same individual can vary from one head area to another. I have found as many as 12 to 15 different types of hair on the same person's head. So, therefore, it would not be possible to estimate the number of different people whose hairs have appeared on this blanket. Mr. EISENBERG. Now, Mr. Stombaugh, are you able to say that the limb hairs and pubic hairs which you found in the blanket and which you have matched with Oswald's in observable microscopic characteristics came from Oswald to the exclusion of any other individual? Mr. STOMBAUGH. No; I couldn't say that. I could say that these hairs could have come from Oswald. I could not say they definitely came from him to the exclusion of all other Caucasian persons in the world. In order to say this, one would have to take hair samples from all of these people and compare them and this, of course, is impossible. Mr. EISENBERG. What degree of probability do you think there is that these hairs came from Oswald? And without putting a precise number on it, let's suppose you took head hairs from 100 Caucasian individuals, how many matches would you expect to find among those hundred different hairs on the basis of your experience? Mr. STOMBAUGH. On the basis of my experience I would expect to find only one match. Mr. EISENBERG. That is to say that the 100 hairs would be different from each other? Mr. STOMBAUGH. Yes, sir. Mr. EISENBERG. Is your experience, therefore, that the hairs of different individuals do not match in observable microscopic characteristics--within the basis of your experience?